co-founder here. it's a good point. yes the Salesforce API limits are still there, and you still need to work around them, but we don't make it worse.
you also get the advantage of having a datastore to conveniently persist data that you extract from Salesforce and other data sources, so that you can process data in batches easily.
Can programming be liberated from the von Neumann style? - John Backus's Turing lecture - http://dl.acm.org/citation.cfm?id=1283933